Quizzical (adjective)

Exhibiting curiosity or puzzlement; marked by quizzing or questioning.

Origin:

Late 19th century; origin uncertain, probably a blend of quiz and quizzical or a shortening of quizzical.

Examples:

1. The scientist looked at the strange rock with a quizzical expression.
2. The teacher was greeted with quizzical looks from the students when she announced the pop quiz.
3. The little boy's quizzical face was filled with innocence.
4. She raised her brow with a quizzical expression when she heard the news.
5. His quizzical manner made it clear that he didn't believe what he was hearing.